Startco FPU-16 Manuel utilisateur

FPU-16 MANUAL

FEEDER PROTECTION UNIT

REVISION 2

NOVEMBER 1997

Publication: FPU-16-M

Document: S95-FPU-00000

Printed in Canada.

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FPU-16 Feeder Protection Unit

Pub. FPU-16-M, November, 1997 Downloaded from the Internet, see Disclaimer.

DISCLAIMER

This document has been downloaded from the Internet and might not be complete—

document quality and formatting depend on the user's computer. This Internet manual

is intended as a temporary guide—obtain an original document from Startco or from an

authorized Startco distributor.

Specifications are subject to change without notice. Startco Engineering Ltd. is not

liable for contingent or consequential damages, or for expenses sustained as a result

of a malfunction, incorrect application, or incorrect adjustment.

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TABLE OF CONTENTS

PAGE

TABLE OF CONTENTS...................................................................................... i

LIST OF FIGURES............................................................................................. iii

LIST OF TABLES................................................................................................ iii

1. INTRODUCTION...................................................................................... 1

1.1 FEATURES AND OPTIONS...................................................................... 1

1.2 ORDERING INFORMATION..................................................................... 1

2. FRONT-PANEL ANNUNCIATION, INDICATION, AND PROGRAMMING..... 3

2.1 GENERAL................................................................................................ 3

2.2 LIQUID-CRYSTAL DISPLAY..................................................................... 3

2.3 KEYPAD.................................................................................................. 3

2.4 LED INDICATORS.................................................................................... 5

2.5 PROGRAMMING...................................................................................... 5

2.6 TRIPS AND ALARMS................................................................................ 6

2.7 DEFAULT VALUES................................................................................... 6

3. MODE DESCRIPTIONS............................................................................ 7

3.1 GENERAL................................................................................................ 7

3.2 MODE 0 — I2t LIMIT................................................................................ 7

3.3 MODE 1 — SHORT-TIME OVERCURRENT............................................. 9

3.4 MODE 2 — INSTANTANEOUS OVERCURRENT..................................... 10

3.5 MODE 3 — CURRENT UNBALANCE....................................................... 10

3.6 MODE 4 — EARTH FAULT...................................................................... 11

3.7 MODE 5 — OPTIONS ............................................................................. 12

3.7.1 AUTORESET........................................................................ 12

3.7.2 ALARM LATCH...................................................................... 12

3.7.3 I2t IMMEDIATE RESET.......................................................... 12

3.7.4 SPARE................................................................................. 12

3.7.5 EARTH-FAULT TRIP TIME.................................................... 12

3.7.6 SHORT-TIME TRIP-AND-ALARM TIME.................................. 15

3.7.7 ANALOG-OUTPUT PARAMETER.......................................... 15

3.7.8 RELAY OPERATING MODE.................................................. 15

3.8 MODE 6 — EARTH-FAULT-CT-PRIMARY RATING (Ie)............................. 15

3.9 MODE 7 — PHASE-CT-PRIMARY RATING (Ip) ........................................ 16

3.10 MODE 8 — RATED CURRENT (In)........................................................... 16

3.11 MODE 9 — PERCENT UNBALANCE....................................................... 17

3.12 MODES A, b, & C — AMMETERS ............................................................ 17

3.15 MODE d — PERCENT I2t / TIME-TO-RESET /

EMERGENCY THERMAL RESET.......................................... 17

3.16 MODE E— EARTH LEAKAGE................................................................. 18

3.17 MODE F — OPERATION COUNTER....................................................... 18

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TABLE OF CONTENTS

PAGE

4. INSTALLATION ........................................................................................ 19

4.1 GENERAL................................................................................................ 19

4.2 COMPONENT MOUNTING....................................................................... 19

4.2.1 PANEL-MOUNT CONFIGURATION....................................... 19

4.2.2 SURFACE-MOUNT CONFIGURATION.................................. 19

4.2.3 ICT-2 INTERFACE CT........................................................... 19

4.2.4 EFCT-1 AND EFCT-2 EARTH-FAULT CT’S............................ 19

4.3 SHIELDED CABLES................................................................................. 25

4.4 FPU-16 CONNECTIONS.......................................................................... 25

4.4.1 ICT-2 INTERCONNECTION CABLE....................................... 28

4.4.2 POWER SUPPLY................................................................. 28

4.4.3 TRIP-RELAY CONTACTS...................................................... 28

4.4.4 ALARM-RELAY CONTACTS.................................................. 28

4.4.5 OPERATION COUNT INPUT................................................. 29

4.4.6 PROGRAM-CHANGE LOCKOUT.......................................... 29

4.4.7 ANALOG OUTPUT................................................................ 29

4.4.8 COMMUNICATIONS INTERFACE.......................................... 29

4.5 ICT-2 CONNECTIONS.............................................................................. 29

4.5.1 STANDARD CONNECTION................................................... 29

4.5.2 RESIDUAL EARTH-FAULT CONNECTION............................ 30

4.5.3 TWO-CT CONNECTIONS..................................................... 30

4.6 CABLE RESTRAINT................................................................................. 30

5. THEORY OF OPERATION....................................................................... 35

5.1 GENERAL................................................................................................ 35

5.2 DISPLAY MODULE .................................................................................. 35

5.3 POWER-SUPPLY MODULE..................................................................... 35

5.4 PROCESSOR MODULE........................................................................... 35

5.5 ANALOG MODULE................................................................................... 37

5.6 OPTION MODULES ................................................................................. 37

5.7 FIRMWARE.............................................................................................. 37

6. TECHNICAL SPECIFICATIONS................................................................ 38

FPU-16 MANUAL COMPATIBILITY...................................................................... 41

WARRANTY....................................................................................................... 42

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LIST OF FIGURES

FIGURE PAGE

1 FPU-16 FRONT PANEL............................................................................ 4

2 FPU-16 CLASS-20 THERMAL CURVE...................................................... 8

3 PANEL-MOUNT FPU-16

OUTLINE AND MOUNTING DETAILS.................................... 20

4 SURFACE-MOUNT FPU-16

OUTLINE AND MOUNTING DETAILS.................................... 21

5 ICT-2 OUTLINE AND MOUNTING DETAILS.............................................. 22

6 EFCT-1 OUTLINE AND MOUNTING DETAILS .......................................... 23

7 EFCT-2 OUTLINE AND MOUNTING DETAILS .......................................... 24

8 SHIELDED CABLE PREPARATION.......................................................... 26

9 TYPICAL FPU-16 CONNECTION DIAGRAM............................................. 27

10 ICT-2 SCHEMATIC................................................................................... 31

11 ICT-2 STANDARD CONNECTIONS .......................................................... 32

12 OTHER ICT-2 CONNECTIONS................................................................. 33

13 CABLE TERMINATION AND RESTRAINT................................................. 34

14 FPU-16 FUNCTIONAL BLOCK DIAGRAM................................................. 36

LIST OF TABLES

TABLE PAGE

1 FPU-16 MODEL NUMBER........................................................................ 2

2 MODE 5—OPTIONS................................................................................ 13

3 MODE 5—OPTIONS (2nd Level without communications interface).......... 14

4 MANUAL REVISION LEVELS.................................................................... 40

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1. INTRODUCTION

1.1 FEATURES AND OPTIONS

— I2t thermal protection.

— Overcurrent protection.

— Current-unbalance protection.

— Earth-fault protection.

— Operation counter.

— Front-panel programming.

— Program-change lockout.

— Nonvolatile memory for programmed values and values-at-trip.

— Parameter-selectable, isolated analog output.

— Digital display of:

Load current for Phase A, B, or C

Percent current unbalance

Earth-leakage current

Percent I2t

Meter values-at-trip

Minutes-to-reset

CT-primary ratings

Trip-and-alarm set points

Operation counter.

— Provision for 5-A or 1-A CT's.

— -40°C to 60°C operating temperature.

— Optional dc supply voltage.

— Optional electroluminescent backlit display.

— Optional remote-keypad input.

— Optional RS-485 communications interface.

1.2 ORDERING INFORMATION

— Determine FPU-16 model number from Table 1.

—Supplied with ICT-2, ICT-2 interconnection cable (6 m, 20 ft), and mounting

hardware.

—Order window-type CT (EFCT-1, EFCT-2, or other) for zero-sequence

earth-fault detection.

— Order TU-16 test unit for training or functional testing.

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TABLE 1

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2. FRONT-PANEL ANNUNCIATION, INDICATION, AND PROGRAMMING

2.1 GENERAL (See Figure 1)

FPU-16 modes are listed on the front panel. Modes 0 to 4 are used to enter trip-

and-alarm set points and to annunciate trips and alarms. Mode 5 is used to

select options. Modes 6, 7, and 8 are used to enter CT-primary ratings and

rated current. Modes 9 to F are used to display metered values and

values-at-trip.

2.2 LIQUID-CRYSTAL DISPLAY

The left digit of the four-digit liquid-crystal display uses a hexadecimal format

(0 to F) to indicate the mode displayed. The remaining digits (designated from

left to right as value digits 1, 2, and 3) display set-point values, meter readings,

and trip-and-alarm codes.

For value digits greater than 999, the last value digit is replaced by E to indicate

an extended range. To obtain the actual value, multiply the reading by 100. For

example, 30E is read as 3000.

2.3 KEYPAD

Four keypad switches provide the operator interface to the FPU-16.

Tactile-feedback switches are used to provide positive indication that switch

contact has been made:

RAMP — This switch is used to adjust values in Modes 0 to 8. Under normal

operation this switch is inoperative. To make the RAMP switch

operative, the program-change lockout must be defeated by

connecting FPU-16 terminals 20 and 21. To change a set point,

ENTER must be pressed within three seconds after RAMP is

released. If ENTER is not pressed within three seconds, the display

will return to its pre-adjusted value. One arrow up and two arrows

down indicate that the RAMP switch is bidirectional. To ramp up:

press and hold. To reverse: release, press again within one second

and hold.

MODE — This switch is used to select the mode displayed. Bidirectional

operation is the same as for RAMP.

RESET— This switch is used to reset trips and alarms and it is used with

ENTER to reset latched alarms in modes 0 to 4, to do an emergency

thermal reset in Mode d, and to reset the operation counter in Mode

F. It is also used to display current in percent of rated current (Modes

A, b, and C) and time-to-reset (Mode d).

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FPU-16 FRONT PANEL

FIGURE 1

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ENTER —This switch is used to enter values in Modes 0 to 8, and to access a

second level in modes 0 to 5 and 8 to F. Values can be entered only

when the program-change lockout is defeated. This prevents

unauthorized or unintentional program changes during normal

operation. When the program-change lockout is defeated, the value

displayed in Modes 0 to 8 will be entered if ENTER is pressed within

three seconds after RAMP is released.

In Modes 0 to 5, the second-level set point will be displayed while

ENTER is pressed. In Modes 9 to E, the value immediately prior to

the most recent trip will be displayed while ENTER is pressed. If the

program-change lockout is defeated, the second level in Modes 0 to 5

will remain displayed for three seconds after ENTER is released to

allow RAMP to be pressed to initiate a second-level program change.

2.4 LED INDICATORS

The red TRIP/ALARM LED is on if a trip or alarm has occurred. It flashes when

the program-change lockout is defeated (program enable active); however, ON

has priority over FLASH. The green PROCESSOR LED is on when the

processor is functional.

2.5 PROGRAMMING

The FPU-16 has individual trip-and-alarm control relays and all trip-and-alarm

set points can be individually adjusted or deleted. At the top of each set-point

range, the delete code "ddd" is displayed. If "ddd" is entered, the set point is

deleted and the associated protection is disabled.

To enable program changes, the program-change lockout must be defeated by

connecting FPU-16 terminals 20 and 21. Remove this connection when

programming is completed. This will prevent unauthorized or unintentional

program changes.

To program trip set points in Modes 0 to 4 and the first level in Modes 5 to 8:

— Press MODE to select the mode,

— press RAMP to adjust, and within three seconds of release,

— press ENTER.

Ce manuel convient aux modèles suivants

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